摘要
按当今新观点,将超细颗粒分成三个等级来处理,以澄清世上一些对其命名和概念所引起的混乱状况。通过对其表面效应、体积效应(包括量子尺寸效应)及对原子簇幻数结构的详细描述,可释明超细金属颗粒之所以具有不同于一般块、粒状金属的诸多特异性能。还着重介绍了超细金属颗粒在宇航、原子能、军事、电子、化学、冶金等工业及医学、生物工程方面的最新应用成果。
The particle size distribution of ultrafine powder was treated by three grades according to some present view points so as to clear up the confusions of misunderstanding definitions and concepts. The special properties of ultrafine metallic particles which are different from usual metal block or powder can be illustrated by detail description of their surface and volume efficiency(including quantum size efficiency) and of the magic numbers structure of atomic cluster . The new achievements in applications of ultrafine metallic particles for astronavigations atomic energy, military, electronics, chemistry, metallurgy and other industry fields, and also in the aspects of medical and biological engineering are emphatically outlined.
出处
《粉末冶金技术》
CAS
CSCD
北大核心
1992年第2期136-141,共6页
Powder Metallurgy Technology
